Chattanooga CPM Patient Kits | OptiFlex & ARTROMOT Replacement Softgoods

Replace worn, missing, or dedicated-patient softgoods on compatible Chattanooga OptiFlex and ARTROMOT continuous passive motion systems with model-specific Chattanooga patient kits for the knee, shoulder, arm, elbow, and ankle.

Each kit is shaped for a particular CPM platform. Match the patient kit to the CPM model and Chattanooga part number, not by appearance alone. A K3 fleece set, for example, is not the same product as a K4 kit, and the ARTROMOT S2/S3 arm kit is different from the OptiFlex S shoulder kit.

The CPM machine is not included. If you need the powered device rather than replacement soft goods, compare our Chattanooga CPM Machines for knee, shoulder, elbow, and ankle rehabilitation.

Find the correct CPM patient kit.

Why the part number matters

These patient kits use combinations of fleece, cushioning, straps, and shaped contact surfaces intended to fit a specific CPM frame. The purpose is not simply to place padding between the patient and the machine; the individual pieces have to fit the corresponding support areas and fastening locations.

If the original CPM machine still has an old kit installed, the safest purchasing method is to identify the machine model first, then select the matching Chattanooga MPN above.

OptiFlex K-1 Knee Patient Kit — 20533

The 20533 OptiFlex Patient Kit is the fleece softgoods configuration for Chattanooga OptiFlex 3 and OptiFlex K-1 knee CPM systems.

It is the appropriate replacement kit selection for our OptiFlex K-1 knee platforms, including the current 2025, 2026, and 2028 controller configurations. The kit includes padded patient-contact components rather than the CPM mechanism itself.

For the complete powered knee system, see our OptiFlex K-1 configurations on the Chattanooga CPM Machines page.

OptiFlex S Shoulder Patient Kit — 20660

The 20660 is the Chattanooga patient-kit configuration associated with the OptiFlex S shoulder CPM.

Do not confuse it with 20719. Although both are upper-extremity softgoods, 20660 is identified for the OptiFlex S platform, while 20719 is Chattanooga's ARTROMOT S2/S3 arm kit. FDA GUDID continues to list 20660 as a commercially distributed product.

ARTROMOT K3 vs. K4 Knee Patient Kits

The 20710 K3 and 20711 K4 patient kits serve two different generations of ARTROMOT knee CPM equipment.

ARTROMOT S2/S3 Arm Patient Kit — 20719

The 20719 S3 Fleece Patient Kit contains components for both the upper and lower arm portions of the compatible ARTROMOT S-series system. Chattanooga currently lists this configuration for the S2/S3 arm application.

This kit should not be selected solely because a machine treats the shoulder. For an OptiFlex S unit, use the exact replacement specification for that machine rather than substituting an ARTROMOT S3 kit without compatibility confirmation.

ARTROMOT E2 Elbow Patient Kit — 20723

The 20723 is the dedicated fleece/softgoods kit for the Chattanooga ARTROMOT E2 elbow CPM. FDA GUDID describes 20723 as a Chattanooga elbow CPM softgoods kit and assigns primary GTIN 00888912268851.

This is the logical replacement—soft goods match—for the ARTROMOT E2 2038 currently offered on our CPM machine page.

ARTROMOT SP2-2M Ankle Patient Kit — 20716

The 20716 patient kit is specifically associated with the legacy ARTROMOT SP2-2M ankle CPM.

Product identifiers

Frequently asked questions

Does a CPM machine come with these patient kits? No. This listing is for model-specific replacement patient-contact softgoods. The powered CPM machine is not included.

Which patient kit fits the OptiFlex K-1? Choose 20533 for the OptiFlex 3 / OptiFlex K-1 knee CPM family.

Are 20710 and 20711 interchangeable? They should not be treated as interchangeable. 20710 is Chattanooga's K3 kit; 20711 is the K4 kit.

What is the difference between 20660 and 20719? 20660 is the OptiFlex S shoulder kit. 20719 is the ARTROMOT S2/S3 arm kit. Select according to the actual CPM model rather than the joint alone.

Which kit fits the ARTROMOT E2 elbow CPM? Use 20723. FDA's current device database identifies it specifically as Chattanooga's elbow CPM softgoods kit.

Does 20716 fit the current OptiFlex Ankle CPM? Do not assume so. 20716 is specifically documented for the older ARTROMOT SP2-2M ankle platform. Confirm an OptiFlex ankle replacement kit separately.

Does Balego include shipping? Yes. We include free U.S. shipping, so compare the displayed price with a complete delivered cost rather than product price alone.